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Cheap flights from Ireland to Washington, D.C. from $439

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Washington, D.C. departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ireland to Washington, D.C.

Recent round-trip flight deals from Ireland to Washington, D.C.

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:00 pm - 10:03 pmDUB  Dublin-DCA Washington, D.C. Reagan-National
12h 03m1 stop Boston Logan Intl
Multiple Airlines Logo
5:35 pm - 9:15 amDCA  Washington, D.C. Reagan-National-DUB Dublin
10h 40m1 stop Detroit Metropolitan Wayne County
$590Multiple Airlines
Mon, Sep 28 - Mon, Oct 5
KLM Logo
10:00 am - 4:38 pmDUB  Dublin-DCA Washington, D.C. Reagan-National
11h 38m1 stop Detroit Metropolitan Wayne County
KLM Logo
5:15 pm - 10:45 amDCA  Washington, D.C. Reagan-National-DUB Dublin
12h 30m1 stop Boston Logan Intl
$591KLM
Wed, Sep 30 - Wed, Oct 7
British Airways Logo
8:45 am - 10:00 pmDUB  Dublin-DCA Washington, D.C. Reagan-National
18h 15m2 stops London Heathrow Philadelphia
British Airways Logo
1:34 pm - 9:40 amDCA  Washington, D.C. Reagan-National-DUB Dublin
15h 06m2 stops Philadelphia London Heathrow
$599British Airways
Mon, Dec 21 - Tue, Dec 29
British Airways Logo
9:00 am - 7:10 pmDUB  Dublin-DCA Washington, D.C. Reagan-National
15h 10m2 stops London Heathrow Boston Logan Intl
British Airways Logo
5:21 pm - 2:05 pmDCA  Washington, D.C. Reagan-National-DUB Dublin
15h 44m2 stops New York John F Kennedy Intl London Heathrow
$599British Airways
Wed, Dec 16 - Wed, Dec 30
British Airways Logo
8:45 am - 10:00 pmDUB  Dublin-DCA Washington, D.C. Reagan-National
18h 15m2 stops London Heathrow Philadelphia
British Airways Logo
1:34 pm - 10:05 amDCA  Washington, D.C. Reagan-National-DUB Dublin
15h 31m2 stops Philadelphia London Heathrow
$599British Airways
Mon, Dec 21 - Fri, Jan 1
British Airways Logo
3:00 pm - 8:04 amDUB  Dublin-DCA Washington, D.C. Reagan-National
22h 04m2 stops London Heathrow New York John F Kennedy Intl
British Airways Logo
5:12 pm - 2:55 pmDCA  Washington, D.C. Reagan-National-DUB Dublin
16h 43m2 stops New York John F Kennedy Intl London Heathrow
$599British Airways
Thu, Nov 12 - Sun, Nov 15
British Airways Logo
9:00 am - 9:26 pmDUB  Dublin-DCA Washington, D.C. Reagan-National
17h 26m2 stops London Heathrow Boston Logan Intl
British Airways Logo
5:21 pm - 2:00 pmDCA  Washington, D.C. Reagan-National-DUB Dublin
15h 39m2 stops New York John F Kennedy Intl London Heathrow
$599British Airways
Wed, Dec 16 - Thu, Dec 31
British Airways Logo
8:50 am - 9:35 pmDUB  Dublin-DCA Washington, D.C. Reagan-National
17h 45m2 stops London Heathrow Boston Logan Intl
British Airways Logo
5:21 pm - 2:05 pmDCA  Washington, D.C. Reagan-National-DUB Dublin
15h 44m2 stops New York John F Kennedy Intl London Heathrow
$599British Airways
Thu, Dec 17 - Wed, Dec 30
British Airways Logo
8:50 am - 7:19 pmDUB  Dublin-DCA Washington, D.C. Reagan-National
15h 29m2 stops London Heathrow New York John F Kennedy Intl
British Airways Logo
1:34 pm - 9:40 amDCA  Washington, D.C. Reagan-National-DUB Dublin
15h 06m2 stops Philadelphia London Heathrow
$599British Airways
Tue, Dec 15 - Tue, Dec 29
British Airways Logo
8:50 am - 7:10 pmDUB  Dublin-DCA Washington, D.C. Reagan-National
15h 20m2 stops London Heathrow Boston Logan Intl
British Airways Logo
5:21 pm - 2:00 pmDCA  Washington, D.C. Reagan-National-DUB Dublin
15h 39m2 stops New York John F Kennedy Intl London Heathrow
$599British Airways
Tue, Dec 15 - Thu, Dec 31

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KLM flights from Ireland to Washington, D.C. Reagan-National Airport

Our best KLM deals on Ireland to Washington, D.C. Reagan-National Airport flight tickets
KLM
Sep 30
DUB10:00 amDublin
11h 38m
1 stop
DCA4:38 pmWashington, D.C. Reagan-National
Oct 7
DCA5:15 pmWashington, D.C. Reagan-National
12h 30m
1 stop
DUB10:45 amDublin
$591
KLM
Sep 3
DUB10:00 amDublin
11h 34m
1 stop
DCA4:34 pmWashington, D.C. Reagan-National
Oct 1
DCA5:05 pmWashington, D.C. Reagan-National
11h 55m
1 stop
DUB10:00 amDublin
$628
KLM
Sep 17
DUB10:00 amDublin
11h 38m
1 stop
DCA4:38 pmWashington, D.C. Reagan-National
Oct 1
DCA5:05 pmWashington, D.C. Reagan-National
11h 55m
1 stop
DUB10:00 amDublin
$629

Air France flights from Ireland to Washington, D.C. Reagan-National Airport

Our best Air France deals on Ireland to Washington, D.C. Reagan-National Airport flight tickets
Air France
Sep 29
DUB11:00 amDublin
12h 28m
1 stop
DCA6:28 pmWashington, D.C. Reagan-National
Oct 6
DCA5:05 pmWashington, D.C. Reagan-National
11h 55m
1 stop
DUB10:00 amDublin
$606
Air France
Oct 28
DUB10:45 amDublin
16h 10m
1 stop
DCA10:55 pmWashington, D.C. Reagan-National
Nov 1
DCA2:00 pmWashington, D.C. Reagan-National
12h 45m
1 stop
DUB7:45 amDublin
$636

momondo Fare Finder

 
Customize your flight search to find flights from Ireland to Washington, D.C. Reagan-National Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 17, 2026.
Use the filters below to find and compare flights from Ireland to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Mon 9/28

3:00 pm-10:03 pm

1 stop12h 03m

Washington, D.C. Reagan-National

Mon 10/5

5:35 pm-9:15 am

1 stop10h 40m

$590

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Wed 9/30

10:00 am-4:38 pm

1 stop11h 38m

Washington, D.C. Reagan-National

Wed 10/7

5:15 pm-10:45 am

1 stop12h 30m

$591

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Mon 12/21

8:45 am-10:00 pm

2 stops18h 15m

Washington, D.C. Reagan-National

Tue 12/29

1:34 pm-9:40 am

2 stops15h 06m

$599

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Wed 12/16

9:00 am-7:10 pm

2 stops15h 10m

Washington, D.C. Reagan-National

Wed 12/30

5:21 pm-2:05 pm

2 stops15h 44m

$599

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Mon 12/21

8:45 am-10:00 pm

2 stops18h 15m

Washington, D.C. Reagan-National

Fri 1/1

1:34 pm-10:05 am

2 stops15h 31m

$599

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Thu 11/12

3:00 pm-8:04 am

2 stops22h 04m

Washington, D.C. Reagan-National

Sun 11/15

5:12 pm-2:55 pm

2 stops16h 43m

$599

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Wed 12/16

9:00 am-9:26 pm

2 stops17h 26m

Washington, D.C. Reagan-National

Thu 12/31

5:21 pm-2:00 pm

2 stops15h 39m

$599

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Thu 12/17

8:50 am-9:35 pm

2 stops17h 45m

Washington, D.C. Reagan-National

Wed 12/30

5:21 pm-2:05 pm

2 stops15h 44m

$599

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Tue 12/15

8:50 am-7:19 pm

2 stops15h 29m

Washington, D.C. Reagan-National

Tue 12/29

1:34 pm-9:40 am

2 stops15h 06m

$599

DublinWashington, D.C.

DUB Dublin - DCA Washington, D.C. Reagan-National

DUBDCA

Dublin

Tue 12/15

8:50 am-7:10 pm

2 stops15h 20m

Washington, D.C. Reagan-National

Thu 12/31

5:21 pm-2:00 pm

2 stops15h 39m

$599

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Ireland to Washington, D.C. Reagan-National Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ireland to Washington, D.C. Reagan-National?

American Airlines and JetBlue are the most popular carriers operating from Ireland to Washington, D.C. Reagan-National

Cheap Ireland to Washington, D.C. Reagan-National Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Washington, D.C. Reagan-National Airport

Best Price Found

$439

Fastest flight time

10h 48m

Direct flights

None
The best one-way flight to Washington, D.C. Reagan-National Airport from Ireland in the past 72 hours is $439. The best round-trip flight deal from Ireland to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $590.
The fastest flight from Ireland to Washington, D.C. Reagan-National Airport takes 10h 48m
There are no direct flights from Ireland to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Ireland to Washington, D.C. Reagan-National Airport.
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Frequently asked questions about flying from Ireland to Washington, D.C. Reagan-National Airport

  • When did momondo last update prices for flights from Ireland to Washington, D.C. Reagan-National Airport?

    Prices for flights from Ireland to Washington, D.C. Reagan-National Airport are updated daily.

  • How old do you have to be to fly from Ireland to Washington, D.C. Reagan-National Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Reagan-National Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Reagan-National Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Arlington
Gettysburg
Waldorf
Laurel
Woodbridge
Fredericksburg
Gaithersburg
Linthicum Heights
Rockville
Silver Spring
Towson
Springfield
Colonial Beach
Fairfax
Edgewood
Tysons
College Park
Glen Burnie

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Ireland.

Can I find flights from Ireland to Washington, D.C. with flexible booking policies on momondo?

Flights from Ireland to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ireland to Washington, D.C.?

momondo helps you find the best flight between Ireland and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ireland to Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Ireland and alert you when they change.

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